Lior Neumann

Lior Neumann

I love math and devtools.

I work at the intersection of AI and software engineering.

Since July 2024, I’ve been focused on AI for code — initially training models for fixing bugs conditioned on logs at Augment, then training coding agents at xAI, and more recently I’m an EIR at Sutter Hill Ventures thinking about the cybersecurity impact of AI and more.

Before that, I co-founded Redefine.dev in 2021. Redefine pioneered applied AI in software engineering by training models to predict the relevant test cases for a given code change. I led company research and product development efforts from zero to six-figure contracts with Fortune 500 companies.

I completed my MSc working alongside Prof. Eli Biham, co-inventor of Differential Cryptanalysis. My research focused on applied cryptography, notably breaking Bluetooth (covered by Forbes).

I started my BSc in Computer Science at the age of 15 and graduated at 18. At 18, I was also a security researcher at Check Point (CVE-2015-0707).

Publications